Railway Turnout Railroad Switch

Railway Turnout Railroad Switch

1. Brief introduction:

Turnout (also called switch) is a critical railway track component that enables trains to switch lines, diverge or converge safely and smoothly. It ensures flexible routing and safe operation of rail traffic, serving as the "hub" of railway track systems.

2. Manufacture process：

As a core component of railway track systems, our railway turnouts are manufactured in strict accordance with international and industry standards to ensure high durability, stability and safety. For materials, we adopt high-strength rails (such as U75V and U71Mn), high-manganese steel or alloy steel frogs, concrete sleeper and special fasteners, all of which are equipped with material certificates and factory inspection reports, and undergo chemical composition, mechanical performance re-inspection and non-destructive testing (UT/MT) to eliminate internal defects.

The production process of turnouts is highly standardized, including several key steps:

• Precise cutting, milling and forming of rail components by CNC equipment;
• Heat treatment (normalizing, quenching and tempering) of rails, frogs and switch rails to enhance hardness and toughness;
• Anti-corrosion treatment (sandblasting, priming and topcoating) to improve service life;
• Integral assembly and debugging on a high-precision platform to ensure the close fit of switch rails and basic rails and smooth conversion;
•  Comprehensive factory inspection and test laying to ensure all parameters meet the requirements before packaging and transportation.

3. Chinese Railway Turnout Classification:

4. Structure of turnout:

90% of the turnout applied in railway are single turnout. Single turnout is composed of switch assembly, connecting part, frog, guard rails, and etc. The detail composition as follows.

5. Our production facility for turnout:

5. Our project references: